Updating BlueZ on Raspberry Pi (from 5.43 to 5.50)

This post shows how to update BlueZ on Raspberry Pi from 5.43 (the default version comes with Raspbian Stretch) to 5.50 (released notes [1]). In this post, I assume that you already have a Raspberry Pi 3, Pi 3+, or Raspberry Pi Zero W running Raspbian Stretch.

Steps[2]1. Check Current BlueZ Version1-1. Before starting, let’s check the current BlueZ version.